Impact driver



FIG. 1 is a perspective view of an impact driver according to the present invention;

FIG. 2 is a front view of the impact driver of FIG. 1;

FIG. 3 is a back view of the impact driver of FIG. 1;

FIG. 4 is a right side view of the impact driver of FIG. 1;

FIG. 5 is a left side view of the impact driver of FIG. 1;

FIG. 6 is a top view of the impact driver of FIG. 1; and,

FIG. 7 is a bottom view of the impact driver of FIG. 1.

The broken lines in the figures illustrate features that form no part of the claimed design. 

CLAIM The ornamental design for an impact driver, as shown and described. 